Table 2 Performance Comparison of 3.5 GHz Rectennas for RF Energy Harvesting Applications.
From: New design of a high-efficiency rectenna for wireless power transfer in 5G applications
Ref. | Frequency (GHz) | Substrate | Rectenna Size | Peak RF–DC Efficiency | Input Power Level | PFE | Remarks |
|---|---|---|---|---|---|---|---|
3.5 | Fr-4 | Compact | 58% | 5 dBm | 70.6 | Reconfigurable beam, 5G band | |
2.45 / 3.6 | Rogers | Compact | 59% / 41% | 2 dBm | 124.4 | Ambient RF harvesting | |
2–18 | Rogers | Compact / Planar PCB | 40% | -5 dBm | 56.2 | Wilkinson split/ Dual-pol, wideband | |
0.9–5.8 | CMOS (on-chip) | IC-level | Up to 60% | -20 to 0 dBm | 120.34 | FoM-based comparison | |
3.3–3.6 4.8–5.0 | Rogers | Compact | 67.6% | 5 dBm | 157.72 | Dual-band sub-6 GHz rectifier | |
3.5 | Alumina + FR-4 | Compact | 67.16% | 5 dBm | 81.87 | CP RDRA + single shunt diode rectifier | |
This work | 3.5 | FR-4 | Compact | 42% | 0 dBm | 57.45 | Low-cost, ambient RF harvesting |
